--- a/xml/en/docs/http/ngx_http_limit_req_module.xml
+++ b/xml/en/docs/http/ngx_http_limit_req_module.xml
@@ -10,7 +10,7 @@
 <module name="Module ngx_http_limit_req_module"
         link="/en/docs/http/ngx_http_limit_req_module.html"
         lang="en"
-        rev="5">
+        rev="6">
 
 <section id="summary">
 
@@ -191,9 +191,13 @@ 1 request per second.
 <para>
 A client IP address serves as a key.
 Note that instead of <var>$remote_addr</var>, the
-<var>$binary_remote_addr</var> variable is used here,
-that allows decreasing the state size down to 64 bytes.
-One megabyte zone can keep about 16 thousand 64-byte states.
+<var>$binary_remote_addr</var> variable is used here.
+The <var>$binary_remote_addr</var> variable’s size
+is always 4 bytes for IPv4 addresses or 16 bytes for IPv6 addresses.
+The stored state always occupies
+64 bytes on 32-bit platforms and 128 bytes on 64-bit platforms.
+One megabyte zone can keep about 16 thousand 64-byte states
+or about 8 thousand 128-byte states.
 If the zone storage is exhausted, the server will return the
 <http-status code="503" text="Service Temporarily Unavailable"/>
 error to all further requests.